Mobile power conversion rate
The conversion rate of mobile power is very important. If the conversion rate is too low, it means that the line loss of the mobile power will be very large, it may cause heat and even explosion danger. Conversion rate can look at the evaluation of each mobile power model. If the advertisement claims to have a conversion rate of more than 90%, it is likely to be falsely reported. In general, the product with a conversion rate of about 85% is already very good.
The standard voltage of the mobile power battery is generally maintained at about 3.7V, so the actual power of the mobile power supply of 10000 mA is 3.7V × 10000mAh = 37Wh, and the charging voltage of the mobile phone is 5V, so the capacitance of the mobile power supply is 37000Wh ÷ 5V. =7400mAh.
The 7400 mAh here is not the final energy obtained by the mobile phone. In the process of charging the mobile phone for the mobile phone, the conversion rate of the mobile power source is generally about 85%. According to the calculation of 85%, the actual output of the mobile power source is 7400 mAh×85. %=6290mAh.
The mobile power supply will also have some loss in the process of charging the mobile phone, and the data line itself will lose some power due to the resistance generated during the transmission of energy, so the power reaching the mobile phone will be lower than 6290mAh.